Envelope book



FIG. 1 is a top plan view of the envelope book of the present invention;

FIG. 2 is a bottom plan view of the envelope book in a closed, unsealed position;

FIG. 3 is a view, similar to FIG. 2, and illustrating the envelope book in a closed, sealed position;

FIG. 4 is a perspective view of the envelope book in a closed, sealed position;

FIG. 5 is a perspective view showing the envelope book in a an unsealed, laid-open position;

FIGS. 6, 7 and 8 are edge views of the envelope book of the present invention. 

The ornamental design for an "envelope book", as shown and described. 